Heat oil in your wok over medium heat. Add your ground Sichuan peppercorns and stir occasionally for 30 seconds. Add the ginger, garlic, chillies fry until aromatic about 1-2 minute, then turn heat to high and add the ground pork. Break up the meat and fry it until its cooked through. add broth/water and let it come to a boil; turn heat to medium and let it continue to simmer. Meanwhile in 1/4cup of water add corn starch and mix thoroughly. Now add cornstarch mixture to the broth and stir.
Let it continue to simmer and thicken slightly. Once slightly thick, add tofu, give a light stir, let it continue to cook for about 5 minutes, now stir in sesame oil and sugar, turn heat off, garnish with green onions and coriander and serve with a steaming hot bowl of boiled rice.
